Confidential by defaultEstablished 201072 Jurisdictions

Currency Transaction Report (CTR)

A Currency Transaction Report, or CTR, is a report a United States financial institution files with FinCEN when currency transactions by or on behalf of one person exceed USD 10,000 in a single business day. It is triggered by an amount of cash, not by anything suspicious.

Also called: CTR filing

“Currency” means physical cash. A Currency Transaction Report is triggered by banknotes and coin crossing the counter, not by the size of a wire, a card payment or an ACH file. A USD 400,000 wire transfer produces no CTR; USD 10,500 in twenty-dollar bills does. The test is more than USD 10,000, so a transaction of exactly USD 10,000 is not reportable.

The threshold is applied per person, per business day, across the institution — not per transaction. Separate cash transactions are treated as one where the institution knows they are by or on behalf of the same person and the cash in, or the cash out, comes to more than USD 10,000 in a single business day. That knowledge condition is doing real work: aggregation is not automatic, which is why institutions build systems that give them the knowledge rather than leaving it to a teller to notice. The report goes to FinCEN and identifies both the individual conducting the transaction and the person for whose benefit it was conducted.

A CTR and a SAR are different instruments

A Suspicious Activity Report is filed because a firm has formed a suspicion. A CTR is filed because an amount was exceeded, and no judgment is involved — a long-standing cash-intensive customer generates CTRs every week with nothing wrong. The two differ in confidentiality as well. A firm may tell a customer that a CTR is being filed; telling a customer that a SAR has been filed is prohibited in the United States. The abbreviation itself is ambiguous across borders: in the United Kingdom a SAR is a report to the National Crime Agency rather than to FinCEN, and the UK has no direct equivalent of the CTR.

Structuring

Because the threshold is public and mechanical, it invites avoidance. Breaking a cash amount into smaller pieces so no single one crosses the limit is structuring, and in the United States it is a federal offense in its own right — the law reaches structuring, assisting in it and attempting it, whether or not the underlying money is clean and whether or not a report was in fact avoided. A firm that spots the pattern does not simply avoid the filing: the attempt is itself reportable as suspicious activity.

Other countries run their own cash-reporting regimes with their own thresholds and forms — Canada, for instance, requires large cash transaction reports to FINTRAC. The CTR is a United States instrument under the Bank Secrecy Act, and it should not be assumed to exist elsewhere.

In practice

A CTR is driven by a cash threshold, not by suspicion — it says nothing about wrongdoing and must be filed whether or not the transaction looks odd. It bites on cash of more than USD 10,000, so a transaction of exactly USD 10,000 is not reportable, and separate transactions aggregate only where the institution knows they are by or on behalf of the same person. Deliberately keeping amounts under the threshold to evade the report is structuring: a federal crime in its own right, whether or not a report was in fact avoided, and reportable as suspicious activity as well.

Example

A customer deposits USD 6,000 in cash at one branch in the morning and USD 5,500 at another branch of the same institution that afternoon. Neither crosses the threshold alone; together they exceed it in one business day, and because the institution knows both were made by the same person they aggregate, so a CTR is due. If the customer split them deliberately to stay under the threshold, that is structuring — a federal offense in itself, and separately reportable.

Commonly confused with

TermHow it differs
Suspicious Activity ReportA SAR is filed because staff formed a suspicion and its filing must be kept confidential from the customer; a CTR is filed because a cash amount was crossed and may be disclosed.
StructuringStructuring is the offense of arranging cash to stay below the reporting threshold; the CTR is the report that behaviour is designed to avoid.

See also

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Page Last Updated: 22/Sep/2026